Gaia DR2 634307433430523648
All names: WDJ092810.68+193711.13, Gaia DR2 634307433430523648, WDJ092810.68+193711.14, SDSS J092810.71+193710.9, J0928+1937, Gaia EDR3 634307433430523648, GALEX J092810.7+193710, Gaia DR3 634307433430523648
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Caron et al. 2023 | Kilic et al. 2020 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 28 10.77 (0.2) | 09 28 10.77 | 09 28 10.77 | 09 28 10.68 (0.2) | 09 28 10.77 | ||||||||
| Declination | 19 37 10.64 (0.1) | 19 37 10.65 | 19 37 10.64 | 19 37 11.15 (0.1) | 19 37 10.65 | ||||||||
| Spectral type | DZ | DZ | DZ | DC: | DZ | ||||||||
| Effective temperature | [K] | 6173.0 (38) | 6054.0 (35) | 6072.0 (34) | 7158.0 | 6919.0 | 6194.0 (162) | ||||||
| log(g) | [cgs] | 8.12 (0.02) | 8.05 (0.03) | 8.05 (0.03) | 8.40 | 8.31 | 8.10 (0.04) | ||||||
| Mass | [M☉] | 0.644 (0.02) | 0.6 (0.03) | 0.602 (0.03) | 0.85 | 0.775 | 0.636 (0.04) | ||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 2.7400 | 3.2260 | 3.0480 | |||||||||
| log(H/He) | -5.0 | -4.0 | <-4 | ||||||||||
| log(C/He) | |||||||||||||
| log(Ca/He) | -10.38 | -10.44 | -10.43 | ||||||||||
| log(Ca/H) | |||||||||||||
| log(N/He) | |||||||||||||
| log(O/He) | |||||||||||||
| log(Na/He) | |||||||||||||
| log(Mg/He) | |||||||||||||
| log(Al/He) | |||||||||||||
| log(Si/He) | |||||||||||||
| log(P/He) | |||||||||||||
| log(S/He) | |||||||||||||
| log(Cl/He) | |||||||||||||
| log(Sc/He) | |||||||||||||
| log(Ti/He) | |||||||||||||
| log(V/He) | |||||||||||||
| log(Cr/He) | |||||||||||||
| log(Mn/He) | |||||||||||||
| log(Fe/He) | |||||||||||||
| log(Co/He) | |||||||||||||
| log(Ni/He) | |||||||||||||
| log(Cu/He) | |||||||||||||
| log(Zn/He) | |||||||||||||
| log(Ga/He) | |||||||||||||
| log(Ge/He) | |||||||||||||
| log(Sr/He) | |||||||||||||
| Parallax | [mas] | 12.78 (0.2) | 12.64 (0.3) | 12.64 (0.3) | 12.78 | 12.78 (0.2) | 12.64 (0.3) | ||||||
| Distance | [pc] | 78.22 (1) | 79.11 (2) | 79.14 (2) | 78.22 | 78.22 (1) | 79.14 (2) | ||||||
| Composition | He | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 76.57690845 (0.3) | 75.6877168 (0.5) | 76.577 (0.3) | 75.6877168 | ||||||||
| Proper motion (declination) | [mas/yr] | -32.01327217 (0.2) | -31.17339113 (0.4) | -32.013 (0.2) | -31.17339113 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | |||||||||||||
| V magnitude | |||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 17.94 (0.05) | ||||||||||||
| H magnitude | |||||||||||||
| K magnitude | |||||||||||||
| u magnitude | 19.62 (0.03) | 19.62 (0.03) | 19.62 (0.03) | ||||||||||
| g magnitude | 18.65 (0.008) | 18.69 (0.008) | |||||||||||
| r magnitude | 18.45 (0.008) | 18.43 (0.008) | |||||||||||
| i magnitude | 18.41 (0.01) | 18.44 (0.01) | |||||||||||
| z magnitude | 18.51 (0.03) | 18.52 (0.03) | |||||||||||
| G magnitude | 18.45 (0.02) | 18.48 | 18.45 | 18.45 (0.003) | 18.48 | ||||||||
| BP magnitude | 18.65 (0.02) | 18.68 | 18.68 | ||||||||||
| RP magnitude | 18.08 (0.03) | 18.09 | 18.09 | ||||||||||
| Pan g magnitude | 18.64 (0.006) | 18.64 (0.005) | |||||||||||
| Pan r magnitude | 18.42 (0.005) | 18.42 (0.004) | |||||||||||
| Pan i magnitude | 18.45 (0.004) | 18.45 (0.004) | |||||||||||
| Pan z magnitude | 18.51 (0.01) | 18.51 (0.01) | |||||||||||
| Pan y magnitude | 18.57 (0.04) | 18.57 (0.03) | |||||||||||
| E(B-V) | 0.004 | ||||||||||||
* Constant surface field
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